Hi Sean, AFAIK OpenFlow topologies do not include controllers but dataplane devices and links between them. I guess this is because: 1) controllers do not normally forward traffic (they control the forwarding) so connection topology is not very relevant; and 2) I do not remember anything in the OpenFlow protocol itself to tell which port in the switch talks OpenFlow to the controller (this information is normally available through the switch management protocol or CLI).
BR/Luis > On Nov 17, 2016, at 1:33 AM, Sean Rohringer <sean.rohrin...@gmail.com> wrote: > > Hello, > > I'm using the openflowplugin with the opendaylight controller, and I'm > wondering if there's a way to determine to which switch the controller is > connected in a topology. In other words, which switch port links to the > controller. Is this information already stored by MD-SAL, once OpenFlow > sessions are instantiated on all switches in a connected topology? If so, how > can it be accessed? > > Thanks in advance for any help! > > Sean Rohringer > > > _______________________________________________ > controller-dev mailing list > controller-dev@lists.opendaylight.org > https://lists.opendaylight.org/mailman/listinfo/controller-dev
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